Added search in title

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -602,6 +602,8 @@ public class FragmentMessages extends FragmentBase {
                         protected void onExecuted(Bundle args, Map<EntityAccount, List<EntityFolder>> result) {
                             PopupMenuLifecycle popupMenu = new PopupMenuLifecycle(getContext(), getViewLifecycleOwner(), fabSearch);
 
+                            popupMenu.getMenu().add(R.string.title_search_in).setEnabled(false);
+
                             int order = 1;
                             for (EntityAccount account : result.keySet()) {
                                 SubMenu smenu = popupMenu.getMenu()

app/src/main/res/values/strings.xml

@@ -492,6 +492,7 @@
     <string name="title_not_encrypted">Message is not encrypted</string>
 
     <string name="title_search">Search</string>
+    <string name="title_search_in">Search in</string>
     <string name="title_searching">Searching \'%1$s\'</string>
 
     <string name="title_sort_on">Sort on</string>